CN111897184A

CN111897184A - Projection platform for digital media

Info

Publication number: CN111897184A
Application number: CN202010779234.6A
Authority: CN
Inventors: 张琦云
Original assignee: Jiangsu Institute of Economic and Trade Technology
Current assignee: Jiangsu Institute of Economic and Trade Technology
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-11-06

Abstract

The invention discloses a projection platform of digital media, which comprises a shell, a telescopic mechanism, a fixed plate, a first sliding block, a second sliding block, a first connecting rod, a second connecting rod, a rotating column, a first screw rod, a second screw rod, a first motor, a retraction mechanism and a fixed mechanism, wherein the telescopic mechanism is arranged on the shell; the projection platform of the digital media is provided with a telescopic mechanism, when the projection platform is used, a first motor drives a first screw rod to rotate, the first screw rod and a second screw rod rotate together, so that the first slider and the second slider move in opposite directions or in opposite directions, two ends of a first connecting rod rotate on the first screw rod and a shell respectively, two ends of a second connecting rod rotate on the first screw rod and the shell respectively, the distance between the shell and a fixed plate is adjusted, the distance between a retracting mechanism and the fixed plate is adjusted, a viewer can conveniently pass through the fixed plate and the retracting mechanism, and continuous viewing of scenes on the retracting mechanism is facilitated.

Description

Projection platform for digital media

Technical Field

The invention relates to the technical field of projection, in particular to a projection platform of digital media.

Background

Digital media belongs to the category of engineering subjects and refers to information carriers that record, process, propagate, and acquire processes in the form of binary numbers. These carriers include sensory media such as digitized text, graphics, images, sounds, video images and animations, presentation media (encodings) representing such sensory media, and the like, commonly referred to as logical media, and physical media for storing, transmitting, and displaying logical media. The projection of the digital media means that the digital media such as characters, figures, images, sounds, video images, animation and the like are projected, so that the digital media is convenient for a user to read, and the digital media is beneficial to the user to analyze information.

When the digital media is projected onto the curtain by the projector, other channels are not available sometimes during watching, so that a viewer can pass through the front of the curtain, light rays projected by the projector can be blocked by the viewer, and the viewing of scenes on the curtain is not facilitated.

Disclosure of Invention

The present invention is directed to a projection platform for digital media, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a projection platform of digital media comprises a shell, wherein the shell is fixed on a telescopic mechanism, the telescopic mechanism comprises a fixed plate, a first slider, a second slider, a first connecting rod, a second connecting rod, a rotating column, a first screw rod, a second screw rod and a first motor, one end of the first connecting rod is rotatably connected with the shell, the other end of the first connecting rod is rotatably connected with the first slider, one end of the second connecting rod is rotatably connected with the shell, the other end of the second connecting rod is rotatably connected with the second slider, the first connecting rod is rotatably connected with the second connecting rod through the rotating column, the first slider and the second slider are both slidably connected with the fixed plate, the first slider is in threaded connection with the first screw rod, the second slider is in threaded connection with the second screw rod, the first screw rod is fixed on the second screw rod, and the first screw rod and the second screw rod are both rotatably connected with the fixed plate, the first motor is sleeved at one end of the first screw rod, which is far away from the second screw rod, the first motor is fixedly arranged on the fixing plate, and the direction of the thread on the first screw rod is opposite to that of the thread on the second screw rod; the shell is internally provided with a retraction mechanism, the shell is fixed with a fixing mechanism, and the retraction mechanism is fixed with the fixing mechanism.

Preferably, the telescopic mechanism further comprises a gear a and a chain b, the fixing plate is of a T-shaped structure, two first screws are arranged, the gear a is sleeved on the first screws, and the chain b is meshed with the gear a.

Preferably, the winding and unwinding mechanism comprises a rotating shaft, a curtain and a second motor, the curtain is wound on the rotating shaft, one end of the curtain is fixed on the rotating shaft, the rotating shaft is sleeved with the second motor, and the second motor is installed on the shell.

Preferably, the retracting mechanism further comprises a clamping rod, the clamping rod is fixed at one end of the curtain, which is away from the rotating shaft, and the clamping rod is clamped on the shell.

Preferably, fixed establishment includes dead lever, solid fixed ring, first snap ring, second snap ring and push rod, the dead lever is L shape structure, the dead lever is fixed in the bottom of shell, be fixed with on the dead lever gu fixed ring, be fixed with on the kelly first snap ring, sliding connection has on the first snap ring the second snap ring, the push rod is fixed in the second snap ring, push rod sliding connection in first snap ring, gu fixed ring's center and the center of first snap ring is in same center department.

Preferably, the fixing mechanism further comprises a spring, one end of the spring is fixed to the first snap ring, and the other end of the spring is fixed to the second snap ring.

Compared with the prior art, the invention has the beneficial effects that: the projection platform of the digital media is provided with a telescopic mechanism, when the projection platform is used, a first motor drives a first screw rod to rotate, the first screw rod and a second screw rod rotate together, so that the first slider and the second slider move in opposite directions or in opposite directions, two ends of a first connecting rod rotate on the first screw rod and a shell respectively, two ends of a second connecting rod rotate on the first screw rod and the shell respectively, the distance between the shell and a fixed plate is adjusted, the distance between a retracting mechanism and the fixed plate is adjusted, a viewer can conveniently pass through the fixed plate and the retracting mechanism, and continuous viewing of scenes on the retracting mechanism is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure between the telescoping mechanism and the housing shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged view of a portion B shown in fig. 2.

In the figure: 1. a housing; 2. a telescoping mechanism; 21. a fixing plate; 22. a first slider; 23. a second slider; 24. a first connecting rod; 25. a second connecting rod; 26. rotating the column; 27. a first screw; 28. a second screw; 29. a first motor; 29a, a gear; 29b, a chain; 3. a retraction mechanism; 31. a rotating shaft; 32. A clamping rod; 33. a curtain; 34. a second motor; 4. a fixing mechanism; 41. fixing the rod; 42. a fixing ring; 43. a first snap ring; 44. a second snap ring; 45. a push rod; 46. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a projection platform of digital media comprises a shell 1, wherein the shell 1 is fixed on a telescopic mechanism 2, the telescopic mechanism 2 comprises a fixed plate 21, a first slider 22, a second slider 23, a first connecting rod 24, a second connecting rod 25, a rotating column 26, a first screw 27, a second screw 28 and a first motor 29, one end of the first connecting rod 24 is rotatably connected to the shell 1, the other end of the first connecting rod is rotatably connected to the first slider 22, one end of the second connecting rod 25 is rotatably connected to the shell 1, the other end of the second connecting rod is rotatably connected to the second slider 23, the first connecting rod 24 is rotatably connected to the second connecting rod 25 through the rotating column 26, the first slider 22 and the second slider 23 are both slidably connected to the fixed plate 21, the first slider 22 is in threaded connection with the first screw 27, and the second slider 23 is in threaded connection with the second screw 28, the first screw 27 is fixed to the second screw 28, the first screw 27 and the second screw 28 are both rotatably connected to the fixing plate 21, one end of the first screw 27, which is away from the second screw 28, is sleeved with the first motor 29, the first motor 29 is fixedly installed on the fixing plate 21, and the directions of the threads on the first screw 27 and the threads on the second screw 28 are opposite; the retractable mechanism is characterized in that a retractable mechanism 3 is installed in the shell 1, a fixing mechanism 4 is fixed on the shell 1, and the fixing mechanism 4 is fixed on the retractable mechanism 3.

Further, the telescopic mechanism 2 further comprises a gear 29a and a chain 29b, the fixing plate 21 is of a T-shaped structure, two first screws 27 are arranged, the gear 29a is sleeved on the first screws 27, and the chain 29b is meshed with the gear 29 a; thereby facilitating better movement of the symmetrically arranged first and second connecting

rods

24, 25, and the housing 1, using the gear 29a and the chain 29 b.

Further, the retracting mechanism 3 includes a rotating shaft 31, a curtain 33 and a second motor 34, the curtain 33 is wound around the rotating shaft 31, one end of the curtain 33 is fixed to the rotating shaft 31, the second motor 34 is sleeved on the rotating shaft 31, and the second motor 34 is installed on the housing 1; therefore, when in use, the second motor 34 is started, the second motor 34 drives the rotating shaft 31 to rotate, and the curtain 33 is wound and unwound by the rotating shaft 31.

Further, the retracting mechanism 3 further includes a clamping rod 32, the clamping rod 32 is fixed at one end of the curtain 33 away from the rotating shaft 31, and the clamping rod 32 is clamped with the housing 1; thereby facilitating the positioning of the curtain 33 and facilitating the lowering of the curtain 33.

Further, the fixing mechanism 4 includes a fixing rod 41, a fixing ring 42, a first snap ring 43, a second snap ring 44 and a push rod 45, the fixing rod 41 is in an L-shaped structure, the fixing rod 41 is fixed at the bottom end of the housing 1, the fixing ring 42 is fixed on the fixing rod 41, the first snap ring 43 is fixed on the clamping rod 32, the second snap ring 44 is connected to the first snap ring 43 in a sliding manner, the push rod 45 is fixed on the second snap ring 44, the push rod 45 is connected to the first snap ring 43 in a sliding manner, and the center of the fixing ring 42 and the center of the first snap ring 43 are located at the same center; thereby facilitating the fixing of the catching bar 32 and the fixing bar 41 and preventing the shaking of the curtain 33.

Further, the fixing mechanism 4 further comprises a spring 46, one end of the spring 46 is fixed to the first snap ring 43, and the other end of the spring 46 is fixed to the second snap ring 44; thereby facilitating the engagement of the second snap ring 44 and facilitating the return of the second engagement.

The working principle is as follows: when the curtain is used, firstly, the fixing plate 21 is installed on a wall surface, the first motor 29 drives the first screw 27 to rotate, the first screw 27 and the second screw 28 rotate together, so that the first sliding block 22 and the second sliding block 23 move towards or away from each other, two ends of the first connecting rod 24 rotate on the first screw 27 and the shell 1 respectively, two ends of the second connecting rod 25 rotate on the first screw 27 and the shell 1 respectively, so that the distance between the shell 1 and the fixing plate 21 is adjusted, the distance between the curtain 33 and the fixing plate 21 is adjusted, a viewer can conveniently pass through the fixing plate 21 and the curtain 33, and the scene on the curtain 33 can be conveniently and continuously viewed; second motor 34 rotates, second motor 34 drives pivot 31 and rotates, thereby make curtain 33 be fixed with the direction removal of the one end of card pole 32 to dead lever 41, then drive second snap ring 44 with push rod 45 and remove to the one end of card pole 32, spring 46 atress compression, and form an opening between second snap ring 44 and the first snap ring 43, then make first snap ring 43 cup joint into solid fixed ring 42, then release push rod 45, spring 46 makes second snap ring 44 reset, the one end that is convenient for second snap ring 44 deviates from spring 46 is contradicted in first snap ring 43, thereby be convenient for first snap ring 43 and second snap ring 44 and solid fixed ring 42 are fixed, prevent that curtain 33 from trembling.

In the description of the present invention, it is to be understood that the terms "inside and outside", "up and down", "front and back", "right and left", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either an electromechanical or an electrical connection; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A projection platform for digital media, comprising a housing (1), characterized in that: the shell (1) is fixed on a telescopic mechanism (2), the telescopic mechanism (2) comprises a fixing plate (21), a first sliding block (22), a second sliding block (23), a first connecting rod (24), a second connecting rod (25), a rotating column (26), a first screw rod (27), a second screw rod (28) and a first motor (29), one end of the first connecting rod (24) is rotatably connected to the shell (1), the other end of the first connecting rod is rotatably connected to the first sliding block (22), one end of the second connecting rod (25) is rotatably connected to the shell (1), the other end of the second connecting rod is rotatably connected to the second sliding block (23), the first connecting rod (24) is rotatably connected to the second connecting rod (25) through the rotating column (26), and the first sliding block (22) and the second sliding block (23) are both slidably connected to the fixing plate (21), the first sliding block (22) is in threaded connection with the first screw rod (27), the second sliding block (23) is in threaded connection with the second screw rod (28), the first screw rod (27) is fixed on the second screw rod (28), the first screw rod (27) and the second screw rod (28) are both in rotary connection with the fixing plate (21), one end, away from the second screw rod (28), of the first screw rod (27) is sleeved with the first motor (29), the first motor (29) is fixedly installed on the fixing plate (21), and the direction of threads on the first screw rod (27) is opposite to that of threads on the second screw rod (28); the folding and unfolding mechanism is characterized in that a folding and unfolding mechanism (3) is installed in the shell (1), a fixing mechanism (4) is fixed on the shell (1), and the fixing mechanism (4) is fixed on the folding and unfolding mechanism (3).

2. A projection platform for digital media according to claim 1, wherein: the telescopic mechanism (2) further comprises gears (29a) and chains (29b), the fixing plate (21) is of a T-shaped structure, two first screw rods (27) are arranged, the gears (29a) are sleeved on the first screw rods (27), and the chains (29b) are meshed with the gears (29 a).

3. A projection platform for digital media according to claim 1, wherein: receive and release mechanism (3) including pivot (31), curtain (33) and second motor (34), pivot (31) winding has curtain (33), the one end of curtain (33) is fixed in pivot (31), second motor (34) have been cup jointed pivot (31), second motor (34) install in shell (1).

4. A projection platform for digital media according to claim 3, wherein: the folding and unfolding mechanism (3) further comprises a clamping rod (32), the clamping rod (32) is fixed at one end, deviating from the rotating shaft (31), of the curtain (33), and the clamping rod (32) is clamped on the shell (1).

5. A projection platform for digital media according to claim 4, wherein: fixed establishment (4) include dead lever (41), solid fixed ring (42), first snap ring (43), second snap ring (44) and push rod (45), dead lever (41) are L shape structure, dead lever (41) are fixed in the bottom of shell (1), be fixed with on dead lever (41) gu fixed ring (42), be fixed with on kelly (32) first snap ring (43), sliding connection has on first snap ring (43) second snap ring (44), push rod (45) are fixed in second snap ring (44), push rod (45) sliding connection in first snap ring (43), gu the center of fixed ring (42) and the center of first snap ring (43) is in same center department.

6. A projection platform for digital media according to claim 5, wherein: the fixing mechanism (4) further comprises a spring (46), one end of the spring (46) is fixed to the first clamping ring (43), and the other end of the spring (46) is fixed to the second clamping ring (44).